EP 1457300 B1 20071212 - Method and apparatus for the discontinuous production of pipe fittings having low warpage
Title (en)
Method and apparatus for the discontinuous production of pipe fittings having low warpage
Title (de)
Verfahren und Vorrichtung zur diskontinuierlichen Herstellung von Rohrverbindungen mit geringem Verzug
Title (fr)
Procédé et dispositif de production discontinue des raccords de tuyau avec faible gauchissement
Publication
Application
Priority
EP 03005700 A 20030313
Abstract (en)
[origin: EP1457300A1] The invention relates to a method and apparatus for the discontinuous production of pipe fittings by injection moulding of thermoplastic polymers. The apparatus comprises a mould (1,2), a core (3,4,5) and a mould cavity (6) between them, a source of molten polymer and a hot runner system (10,11,9,7). The hot runner system (10,11,9,7) contains a hot runner manifold (9) for distributing molten polymer (8) and a number of injection gates (7). There are at least three injection gates (7) distributed across the circumference of the frontal cross section of the mould cavity (6) and each injection gate (7) comprises a hot runner nozzle. <IMAGE>
IPC 8 full level
B29C 45/00 (2006.01); B29C 45/26 (2006.01); B29C 33/76 (2006.01); B29C 45/27 (2006.01); B29L 23/00 (2006.01)
CPC (source: EP)
B29C 45/0025 (2013.01); B29C 45/261 (2013.01); B29C 33/76 (2013.01); B29C 45/27 (2013.01); B29C 45/2708 (2013.01); B29C 2045/0027 (2013.01); B29C 2045/2693 (2013.01); B29L 2031/24 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1457300 A1 20040915; EP 1457300 B1 20071212; AT E380641 T1 20071215; DE 60318008 D1 20080124; DE 60318008 T2 20081127; ES 2297065 T3 20080501
DOCDB simple family (application)
EP 03005700 A 20030313; AT 03005700 T 20030313; DE 60318008 T 20030313; ES 03005700 T 20030313